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Finding the Fourth Proportional to 29,611.34, 40,856.90 and 17,678.54

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Solution

The fourth proportional to 29,611.34, 40,856.90 and 17,678.54 is: 24,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,611.34 : 40,856.90 = 17,678.54 : x
  2. Step 2: Convert to fraction form
    29,611.34/40,856.90 = 17,678.54/x
  3. Step 3: Cross multiply
    29,611.34x = 40,856.90 × 17,678.54
  4. Step 4: Simplify right side
    29,611.34x = 722,290,340.93
  5. Step 5: Solve for x
    x = 722,290,340.93/29,611.34
  6. Step 6: Final answer
    x = 24,392.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.